Marijuana may double the risk of testicular cancer in young males.

WTR-RI Research and Analysis Team note: The three articles referenced below relate results of studies published in the journal Cancer. They indicate that marijuana use in puberty and adolescence may double the risk of testicular cancer, a condition that is reported to have a usual prevalence rate of .5% in the general population.

Population-based case-control study of recreational drug use and testis cancer risk confirms an association between marijuana use and nonseminoma risk†